Query: NC_011884:4366831 Cyanothece sp. PCC 7425, complete genome
Lineage: Cyanothece; Cyanothece; ; Chroococcales; Cyanobacteria; Bacteria
General Information: Cyanothece sp. PCC 7425 was isolated from a rice field in Senegal. Unlike some other Cyanothece strains, Cyanothece 7425 appears to be an obligate autotroph. Cyanothece may prove very important in biological hydrogen production, as it is missing the uptake hydrogenase enzyme.
Subject: NC_005125:3420270 Gloeobacter violaceus PCC 7421, complete genome
Lineage: Gloeobacter violaceus; Gloeobacter; ; Gloeobacterales; Cyanobacteria; Bacteria
General Information: This organism was isolated from a calcereous (chalky) rock in Switzerland. Photosynthetic bacterium. This organism is an obligate photoautotroph that lacks thylakoid membranes and probably has its photosynthetic machinery in the cytoplasmic membrane with various components exposed to the periplasm whereas in other cyanobacteria the components are situated in the thylakoid membrane and are exposed to the cytoplasm. This unusual arrangement may be due to the lack of various fatty acids that are found in the thylakoid membrane in other cyanobacteria. It has been predicted that this organism was one of the earliest to diverge from the cyanobacterial line.